<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>fixed固定定位</title>
		<style>
			/* ,是群组选择器 */
			.left,
			.right {

				/* 当前元素使用固定定位 */
				position: fixed;


			}

			.left {
				width: 400px;
				height: 590px;
				position: absolute;
				position: fixed;
			}

			.right {
				width: 520px;
				height: 590px;
				right: -120px;

			}

			.among {
				position: relative;
				margin-left: 198px;
				width: 700px;
				height: 620px;
				position: fixed;
			}

			.k {
				width: 1800px;
				height: 580px;
				border: 1px;
				font-size: 3px;
			}

			.iframe {
				display: block;
			}
		</style>
	</head>
	<body>
		<!-- <div class="top">我是顶部的广告条</div> -->
		<div class="k">
			<span class="left"><iframe width="200px" height="580px" src="./hdi_014.html" frameborder="0"
					id="d1"></iframe></span>
			<span class="among"><iframe width="780px" height="600px" src="./hdi_013.html" frameborder="0"
					id="d1"></iframe></span>
			<span class="right"><iframe width="400px" height="580px" src="./zijinzifushenghe_right.html" frameborder="0"
					id="d1"></iframe></span>
		</div>
	</body>
</html>